Stopping device for looms.



"0.679370. Patented July 30, 19m.

.1. HADEN & n. uownmm. STOPPING DEVICE FOR LOUIS.

(Apphcat 1111161113202. 29 1900 (No Model.)

H mm midi JOHN I-IADEN AND RICHARD HOWARTH, OF PATERSON, NEW JERSEY,ASSIGNORS OF ONE-THIRD TO WALTER BAMFORD, OF SAME PLACE.

rrn Starts AJFENT mirr r.

STOPPING DEVECE FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 679,370, dated July 30,1901.

Application filed December 29,1900. Serial No. 41,460. (No model.)

T0 at whom it may concern:

Be it known that we, JOHN HADEN an (1 HIGH- ARD HOWARTH, citizens of theUnited States, residing at Paterson, in the county of Passaic and Stateof New Jersey, have invented cer tain new and useful Improvements inProtector Stopping Devices for Looms, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates generally to looms, and particularly to devicesfor stopping the operation of the loom in emergencies, as when abreakage occurs in any part of the loom mechanism; and it has for itsobject to provide a simple, durable, and'inexpensive device adapted toautomatically cause the almost instantaneous stoppage of the loom when abreak occursin therack, strap, shuttle-plank or pinion, or in the wirerod which connects the strap to the lever for imparting the traversemovement to the rack, or when a break or disarrangement occurs in anyother part of the operative mechanism of the loom, and by such stoppageprevents the loss in time, labor, and material now occasioned by reasonof the continued operation of the loom after the breakage or disablementof some part thereof occurs; and it consists in a device adapted to beconnected to and to move with the rack during the traverse movement ofthe latter and to also partake of the movement of the batten during theoperation of the loom and to engage or come into contact with a fixedpart of the loom, as the breast or some other portion of the loom-frame,when a breakage of any part of the mechanism or the disablement of thesame from any cause occurs, and by such engagement or contact arrest thebatten and prevent the completion of its forward movement, and therebyinstantly stop the operation of the 100111, as will be hereinafter morefully described and claimed.

In the accompanying drawings, forming a part of this specification,Figure 1 is a front view of a portion of a loom, showing our inventionin position thereon; Fig. 2, a side View of the same; Fig. 3, a planView with the breast of the loom removed; Figs. 4c, 5, 6, and 7, detailperspective views showing the different positions of the stop deviceduring the operation of the loom, and Fig. 8 a detail perspective Viewof the stop device.

Similar characters refer to similar parts throughout the several views.

Since the invention relates only to the device for stopping theoperation of the loom and does not in any way affect the generalconstruction or arrangement of the parts of the loom and is adapted forapplication to the ordinary loom without alteration of the latter, onlyso much of a loom will be illustrated and described as is necessary togive a clear undestanding of the application to and operation of ourdevice in connection with a loom.

Referring to the drawings, A represents the loom-frame, of which A isthe breast portion thereof. The batten O, the rack F, the shuttle E,provided with the holes 0 for the warpthreads, the reed-frames D, (thereeds not be ing shown,) the rack-strap K, and the rackpinions F (shownin outline only, Fig. 3) are all or may be of the usual or any preferredor suitable form and arranged in the usual manner and form no part ofour present invention. The rack-strap K is usually secured to the rackat one end and passes around or in contact with a series ofguide-rollers and is connected, by means of a wire rod L,'to the usuallever (not shown) in order to impart the traverse motion to the rack.

Our device for arresting or stopping the operation of the loom in theevent of the breakage or disarrangement of any of its parts in thisinstance consists of a block B, the sides of which are cut away orotherwise formed or provided with the steps or shoulders B B and withthe projection B. To the block is attached a carrier 13*, which extendsto and is secured at one end to the rack F, whereby the block is movedback and forth with the rack during the operation of the latter. Theblock is arranged in front of the batten, and'in this instance thecarrier 13 is shown as extending through a slot or recess 13, formed inthe batten and of a length suf[i cient to permit of the reciprocation ofthe block the full limits of the movement of the rack to which it isattached; but it is obvious that the block-carrier B may extend over thebatten and be attached to the rack without recessing or slotting or inany way altering the batten and that the result will be the same. It isalso obvious that the carrier may be attached directly to the rack-strapK instead of the rack without change in the operation of the block orthe result obtained. The steps or shoulders B and B and the projection13 of the block are adapted in the event of a breakage or disarrangementof the mechanism of the loom to engagethe breast or some other fixedpart of the loom, and the object of stepping the block is to provide forits instantaneous engagement with the breast to arrest the forwardmovement of the batten, and thus stop the loom at any point in thereciprocation of the block at which a breakage may occur in the loom.

Our invention can be applied to any ribbon-loom using a rack and pinionsby connecting the block directly to the rack.

The operation of stopping a loom by means of our device is as follows:The device being attached to the rack moves with the latter in itstraverse movements, as indicated at 1 and 2 by the dotted linesoutlining the block, Fig. 8, and also partakes of theforward-andbackward movement of the batten during the operation of theloom, and should the movement of the rack be arrested at any pointwithin the limits of its travel by reason of the breakage of any part ofits operating mechanism the stop device being attached to the rack ofcourse ceases its traverse movement, and the batten being given itsforward movement by reason of its connection with the loom-shaft throughthe arm H continues said forward movement until it is arrested by thestop device coming into contact with the loom-frame, and as said stopdevice is connected through the batten and the arm H with the loom-shaftfurther revolution of the latter is instantly prevented. The distancethe batten can move forward is of course dependent on the distance theend of the stop device or the steps or shoulders thereof is from theframe, and such distance need only be such as will insure the stopdevice clearing the frame during the operation of the loom, and inpractice it is found that the setting or adjusting of the end of thestop at a distance of about one-half an inch from the frame providesample space for the clearance of the frame. Thus the batten can onlymove forward after a breakage the distance the end of the stop device orthat one of its shoulders or steps in line with the frame is from thebatten at the time the breakage occurs to the mechanism before the stopdevice will engage the frame and instantly arrest the forward motion ofthe batten.

The loom-shaft is usually driven by a belt from an overhead shaft to apulley on the loom-shaft, and practical experience with our device inactual operation has shown that immediately upon the said deviceengaging the frame of the loom the loom-shaft ceases to operate and thebelt continuing to move is thrown off the loom-shaft pulley. If,however, the belt should fail to leave the loomshaft pulley when theloom-shaft ceases to revolve, it can only slip thereon without impartingmotion to said shaft, as the same is firmly held against revolution byreason of the contact of the stop device with the frame of the loom,preventing the forward movement of the batten, and as a consequence theforward throw of the arm H, which thus acts as a brake for theloom-shaft. The stop device is carried during the movement of the rackback and forth in front of the loomframe and alternately passes at eachside of the same during the forward movement ofthe batten.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. In an emergency stop device for looms, the combination with thebatten, the rack, and means for operating the batten and rack, of a stopdevice, connected to the rack and participating in the motion of thebatten, and adapted to engage a fixed part of the loomframe uponbreakage of any part of the operative mechanism of the loom to therebyarrest the movement of the batten.

2. In an emergency stop device for looms, the combination with a batten,a rack, means for imparting a traverse movement to said rack and foroscillating said batten, and a fixed part on the loom-frame, of a stopde* vice, and means for securing said device to said rack, whereby saidstop device moves simultaneously with said rack and batten during theoperation of the loom and engages said fixed part of the loom upon thebreakage of any part of the operative mechanism of the loom to therebyarrest the movement of the batten.

3. In an emergency stop device for looms, the combination with a fixedpart of the loomframe, a batten, a rack, and means for impartingoperative movement to said batten and rack, of a stop device connectedto said rack and arranged to engage the fixed part of the loom-frame andto arrest the forward movement of the batten upon the stoppage of therack.

4. An emergencystop-block for looms having a shuttle-actuating rack,said block having steps or shoulders at each side and a car rier securedthereto for attachment to the rack.

5. In an emergency stop device for looms, the combination withtheloom-frame, the batten and the rack, of a block having steps orshoulders, and a carrier for connecting said block to the rack, wherebythe breakage of the mechanism of the loom will cause the block to engagesaid frame.

In testimony whereof we affix our signatures in presence of twowitnesses.

JOHN HADEN. RICHARD HOWARTH. Witnesses:

J OHN F. KERR, T. J. CHANDLER.

